Like all clubs if you start the swing from a grounded club it's difficult to tell if the hands will unravel to the same position they were at address which will affect the clubhead alignment and result in a shot hit offline.

If you hover the club you will find it easier to feel if the clubhead direction is likely to change mid swing. You can then adjust the body position and grip (slightly) until you get the clubhead travelling bang square to the target line.